Swollen nuts

Author
Discussion

murphyaj

Original Poster:

655 posts

76 months

Thursday 14th March 2019
quotequote all
Car has just been serviced at the main dealer and they've given me a few bits that have come up in the healthcheck, mostly advisories, but one that they have marked as urgent:

"Wheel nuts have swollen, have managed to torque but Strongly recommend all new." £177.84 inc Vat

I've never had swollen nuts come up as an issue before, and certainly not all 20 at once. Has anyone had this before? Is it a genuine concern?
They've also recommended new front pads, which I know for a fact were changed last year and have done about 3000, not especially hard, road miles, so I take their advice with a pinch of salt.

murphyaj

Original Poster:

655 posts

76 months

Thursday 14th March 2019
quotequote all
A bit of googling shows that composite lug nuts can and do swell over time, and that can make them very hard to remove. It's also a problem that gets worse over time, and something that ford group cars are known for, so if the nuts are originals and thus a similar age they might be similarly bad.

Edited by murphyaj on Thursday 14th March 15:54

8Tech

2,136 posts

199 months

Thursday 14th March 2019
quotequote all
Composite lug nuts? Thats a new one on me. I thought they were either steel or Titanium as an option?

The "swell" is something I cannot envisage, but damaged/stretched threads from over-tightening is not uncommon.

Sounds a bit iffy to me.

murphyaj

Original Poster:

655 posts

76 months

Thursday 14th March 2019
quotequote all
https://www.cartalk.com/blogs/dear-car-talk/swolle...

Steel with a chrome cap to prevent corrosion. Trouble is the steel still corrodes underneath the chrome, hence the swelling. If it gets bad enough they can be pretty hard to remove.

LMV600

54 posts

192 months

Thursday 14th March 2019
quotequote all
The last post is correct , the steel nuts corrode and swell underneath the chrome finishers I assume due to moisture gathering internally , or as may be the case acidic wheel cleaning formulas doing their business .

Not an issue of course until you need to remove the wheel for any reason .

LMV

Manx V8V

482 posts

83 months

Thursday 14th March 2019
quotequote all
The pads are easy enough to check, just put your little finger in and feel them, (when cold) or use a small mirror on a stick, you can soon see/feel how much 'meat' is left on them without any dismantling.

oilit

2,634 posts

179 months

Thursday 14th March 2019
quotequote all
As somebody I know in Merc main dealer once told me - our advice is given on the premise of we know your historical mileage, and so we make these recommendations on our expert assessment that if your mileage remains consistent then your xyz will need replacing between services which would be an inconvenience for you.....not that they are 100% worn out now . biglaugh

oh - and he also let it slip that he has a target for such advance replacements irked

8Tech

2,136 posts

199 months

Thursday 14th March 2019
quotequote all
Ah yes, those. I carry a 20mm socket for the Fords and Volvos that have that problem.

bullet7

303 posts

103 months

Thursday 14th March 2019
quotequote all
Would it not be worth soaking your nuts in something like WD40 occasionally to keep the corrosion at bay?

DB9VolanteDriver

2,612 posts

177 months

Friday 15th March 2019
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What chrome? The caps are stainless steel are they not?

B4rnst4ble

790 posts

150 months

Friday 15th March 2019
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Must not comment ....... smile

MO55

2,036 posts

168 months

Friday 15th March 2019
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bullet7 said:
Would it not be worth soaking your nuts in something like WD40 occasionally to keep the corrosion at bay?
Not wishing to lower the tone you understand nono but I really am struggling to take this thread seriously,,, sorry. wink

thebraketester

14,256 posts

139 months

Friday 15th March 2019
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177 quid? Blimey.....

rancidswan

126 posts

91 months

Friday 15th March 2019
quotequote all
Fairly sure that the nuts are exactly the thread/length/taper etc as a number of transits IIRC. In fact I'm sure I have some letting in the shed.

Searching historical posts will confirm, but there's no way I'd be shelling out that price for new ones.

murphyaj

Original Poster:

655 posts

76 months

Friday 15th March 2019
quotequote all
I just spoke to them and they clarified £177 was the price for 10!!!!!! Apparently that included a fitting charge - at about 60 seconds per nut that's quite the hourly rate.

I politely declined. I'm pretty sure I can manage to change some wheel nuts myself for a bit less than that.

Edited by murphyaj on Friday 15th March 14:47

murphyaj

Original Poster:

655 posts

76 months

Friday 15th March 2019
quotequote all
To be honest I should have just ignored everything they said after seeing this recommendation:

- Tyre sealent expired, recommend new. £82.21

Price for a bottle on astonmartinbits? £12.00. Perhaps there is a £60 fitting charge for popping it in the boot.
I only went to the main dealer because my usual Indy didn't have a convenient slot, I doubt I shall be returning.

V12JDC

190 posts

91 months

Friday 15th March 2019
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My nuts have been swollen for 3 years and haven't got any worse, I can still fit the things onto them that I need to with no drop off in performance......

Stevejay

306 posts

147 months

Friday 15th March 2019
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Never had a problem with swollen nuts mind you I haven’t had a vasectomy either rolleyes

Pistonheader101

2,206 posts

108 months

Saturday 16th March 2019
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murphyaj said:
A bit of googling shows that composite lug nuts can and do swell over time, and that can make them very hard to remove. It's also a problem that gets worse over time, and something that ford group cars are known for, so if the nuts are originals and thus a similar age they might be similarly bad.

Edited by murphyaj on Thursday 14th March 15:54
Just don’t google images swollen nuts